@unpublished{repository27483,
           title = {Surat tugas dan sertifikat senaskah},
            note = {Unpublished},
       publisher = {UNIVERSITAS MUHAMMADIYAH PROF.DR.HAMKA},
          author = {agustini, vilya dwi},
             url = {http://repository.uhamka.ac.id/id/eprint/27483/}
}